I have a Mugen X12 with the grey head, is the piston and sleeve still available for this engine? I don't want the micro cast piston. Any part numbers? Anyone know where it is available?
Doc I have the newer x12 with the turbo button and the part number is NOV08606
(competition piston/sleeve). Not sure if its microcast or not. I would try mugen to be sure (949) 707-5607.
Also here is the part number (F08613B)
for the piston/sleeve & rod set I run in my stock X12 and JPX12. It is the JP-FX12 modified piston and sleeve. This is what I have been running all year.